Custom Antibody Services

Absolute Antibody, a Vector Laboratories company, was founded with the vision that recombinant antibodies should be accessible to all.

A leading provider of custom antibody sequencing, engineering, production, and purification services, we serve biotech innovators across therapeutic, diagnostic, and research applications. Our mission is to deliver engineered confidence—ensuring every antibody we produce is built on scientific rigor, transparency, and fit-for-purpose quality.

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Antibody Engineering Expertise

Confidence engineered into every antibody.

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Tailored Solutions

Every process is tailored to your molecule—not the other way around

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Rigorous Quality Controls

Quality built in, not bolted on.

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Engineered recombinant antibodies developed for our reagents catalog​

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Hybridomas sequenced

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Successful antibody humanization projects

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Different antibody formats produced

Antibody Sequencing
Antibody Engineering
Antibody Production
Current Promotions

Antibody Sequencing

It starts with a sequence

Knowing your hybridoma or antibody protein sequence is crucial for the security and continuation of your antibody production. Our antibody sequencing services include Next generation Sequencing of hybridoma cells and de novo sequencing of purified antibody protein. Sequencing can be performed as a stand-alone activity, or as the first step toward antibody engineering and transient serum-free expression. Whether it is a hybridoma or purified monoclonal antibody protein, Absolute Antibody offers industry-leading sequencing services to help safeguard your invaluable antibody.

Why Sequence Your Antibodies?

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Hybridoma Sequencing Service

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Antibody Protein Sequencing Service

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Our hybridoma sequencing method – The mRNA transcriptome is obtained from the hybridoma, and random hexamers are used to generate a cDNA library. This is fragmented and undergoes paired-end sequencing. The sequencing reads are assembled into contigs, from which antibody transcripts are identified based on homology.​

Antibody Engineering

Engineered Confidence. Built Around Your Molecule.

Antibody engineering allows for the modification of antibodies to build molecules better suited for your application. At Absolute Antibody, we utilize a proprietary cloning system that enables the rapid reformatting of antibodies into almost any format. From isotype and species switching to humanization and multispecifics, we engineer confidence into every step.

Explore our royalty-free antibody engineering capabilities.

Isotype Switching
Species Switching
Fragments
Fc Silencing
Humanization
Multispecifics

Periodic Table of Antibodies

Antibodies Periodic Table
The Periodic Table of Antibodies showcases the wide assortment of antibodies produced by Absolute Antibody. These novel antibody formats demonstrate the lengths scientists are going to combine protein engineering with biology to generate efficacious drugs. From standard IgGs to antibody fragments, multispecifics, and Fc fusion proteins, these new formats help tailor binding and half-life to specific biological settings. Every antibody depicted in the table has been manufactured in- house using our proprietary cloning system.​

Explore 180+ antibody formats in our interactive Periodic Table of Antibodies

Antibody Production

Scalable expression tailored to your molecule.

Absolute Antibody’s expression platforms rapidly produce high-quality, animal-free recombinant antibodies in HEK or CHO cells. By utilizing a serum-free mammalian transient expression system, our production service offers a faster, more affordable alternative to stable cell line generation. This robust platform has proven success in manufacturing recombinant antibodies in any species, isotype, or format with high purity and low endotoxin levels. 

Scalability matters, which is why we offer a microgram-to-gram range of expression capabilities. From small-scale production, perfect for lead discovery candidate selection, to large-scale production, our expression services are flexible to your needs.  

Antibody Expression

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Antibody Production Graph
HEXpress™

HEK Antibody Production

CHXpress™

CHO Antibody Production

FleXpress™

Antibody Production

FinessePress™

High-Throughput Antibody Production

Current Promotions

Contact your sales representative or fill out the form below to take advantage of our promotional offers.

10% off

one project

20% off

two projects

30% off

three or more projects

In addition, we offer up to

50% off

discount for off-the-shelf isotype control catalog antibodies.

Terms and conditions:

This offer is valid for new production projects through Dec 31, 2025. Limitations may apply when combining with existing offers and/or discounts. Final price and discount will be determined and reflected on the project quotation. 50% discount for off-the-shelf isotype control catalog antibodies is valid only when the isotype control antibody order is placed with any custom antibody production projects. Absolute Antibody, a Vector Laboratory company, reserves the rights to change or modify this promotion.

Talk to an Expert
Ready to get started on your next antibody project? Have questions about our sequencing, engineering, or expression services? Need guidance on customizing your antibody? Consult with our experts free of cost. Fill in your information and our team will get in touch with you.